Losing all communication to my to the gauges to diagnostic
 

Gauges to the ground stuck on 3rd gear after an hour or so all the gauge pop up and we're back to normal soon as I turn it off it's the same results scanners doesn't read is not letting me send the signal once it warms up in the gauges pop up after the hour it's able to read it Diagnostics show everything's okay Dragon harnesses wiggling maybe a short nothing still same any suggestions anybody familiar with this headache 2005 6.0 two wheel drive

Sometimes a temperature related fault will crop up and sometimes it will go away. Many times a poor connection is responsible so it might be a good idea to look over and check all the ground connections as a starting point..